@FediTips

Users cant defederate, but can block instances. How do users "PRE block" these instances?

@kevinrns

Users can't really block instances unfortunately. All that the user level domain block really does is hide stuff from that you. The bigoted material can still mislead/radicalise other people on your server.

The blocking needs to be done by the server admins for it to have a protective effect.

@FediTips

I dont want to accidentally boost a post from an instance that should be GONE.

@kevinrns

Ah fair enough, that's a good point!

For user-level blocks, you have to find an account that belongs to that server, go to its profile, click on ⋯ and then select "Block domain".

Because it requires finding the account, it can't be done pre-emptively at user level. However the admin can block any server pre-emptively by just adding its domain name to the server's suspension list.

@FediTips @kevinrns

Individual users can block a domain without having a post from that domain. It involves creating a text csv file of the domains to be blocked, then uploading that file to the "Domain Blocking List" option on one's preferences->imports page. It's not hard, though the process is a bit clumsy.

Detailed instructions about halfway down this article: https://medium.com/@geofbard/how-to-block-server-domains-in-mastodon-899b24f8fb6e